# BLOCK GUARD **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [March 7, 2008, 10:36am UTC](https://forums.speedlife.net/t/block-guard/195963 "2008-03-07T10:36:40Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![bald1one](https://avatars.discourse-cdn.com/v4/letter/b/9de053/32.png) [@bald1one](https://forums.speedlife.net/u/bald1one)\ **Post date:** [March 7, 2008, 10:36am UTC](https://forums.speedlife.net/t/block-guard/195963/1 "2008-03-07T10:36:40Z")
anybody know if those block guards for HONDA’s actually work?? ---
**Author:** ![cmross13](https://avatars.discourse-cdn.com/v4/letter/c/a6a055/32.png) [@cmross13](https://forums.speedlife.net/u/cmross13)\ **Post date:** [March 7, 2008, 12:53pm UTC](https://forums.speedlife.net/t/block-guard/195963/2 "2008-03-07T12:53:25Z")
its an overly discussed/argued topic, much like underdrive pulleys. the short answer is: yes, some can and will prevent the sleeves from moving/flexing/shifting. the cost of that “safety” is that they will block/slow/hinder coolant flow. if you can’t afford to get your block sleeved, you could kick it old school and have a machinest put dowels in it on an unrelated sidebar, if your wondering what the UDP referance is, its simple. crankshafts are designed to have a harmonic balancer to cancel out harmful vibrations and frequencies. if you remove the harmonic balancer in favor of a super light crank pulley, you are effectively re-intruducing those same harmful sonic pulses. the only acceptable solution is to have your stock crank pulley lightened or to drop a few hundred on an ATI or something. ---
**Author:** ![dyingwish](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dyingwish/32/6041_2.png) [@dyingwish](https://forums.speedlife.net/u/dyingwish)\ **Post date:** [March 7, 2008, 1:08pm UTC](https://forums.speedlife.net/t/block-guard/195963/3 "2008-03-07T13:08:48Z")
> [@Any wine drinkers here?](https://forums.speedlife.net/t/any-wine-drinkers-here/26524/66): > > its an overly discussed/argued topic, much like underdrive pulleys. > the short answer is: yes, some can and will prevent the sleeves from moving/flexing/shifting. the cost of that “safety” is that they will block/slow/hinder coolant flow. > > if you can’t afford to get your block sleeved, you could kick it old school and have a machinest put dowels in it > > on an unrelated sidebar, if your wondering what the UDP referance is, its simple. crankshafts are designed to have a harmonic balancer to cancel out harmful vibrations and frequencies. if you remove the harmonic balancer in favor of a super light crank pulley, you are effectively re-intruducing those same harmful sonic pulses. the only acceptable solution is to have your stock crank pulley lightened or to drop a few hundred on an ATI or something. Well stated, and yes adding UDP will allow harmful harmonic to resonate through your crank. Fluidampr makes a killer alternative to the OEM pulley. You can also shave your outer two beltways and have it balanced afterward…this leaves the OEM dampening substrate intact. ---
**Author:** ![fmfkid250](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fmfkid250/32/5973_2.png) [@fmfkid250](https://forums.speedlife.net/u/fmfkid250)\ **Post date:** [March 7, 2008, 1:31pm UTC](https://forums.speedlife.net/t/block-guard/195963/4 "2008-03-07T13:31:36Z")
dont it it, the harmonics will cause it to crack without a doubt. a damper pully will help. But for all of that doe you should just sleeve for 700. ---
**Author:** ![spoolinsteve](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/spoolinsteve/32/6026_2.png) [@spoolinsteve](https://forums.speedlife.net/u/spoolinsteve)\ **Post date:** [March 7, 2008, 1:37pm UTC](https://forums.speedlife.net/t/block-guard/195963/5 "2008-03-07T13:37:28Z")
Both of my buddies daily turbo b16s with a block guard in them. I have no idea if they help, but no adverse affects have came from the block guard. Id imagine they have to hold something. lol Honda cooling systems seem pretty fucking efficient i mean i can piss more coolant than those little radiators can hold. ---
**Author:** ![bald1one](https://avatars.discourse-cdn.com/v4/letter/b/9de053/32.png) [@bald1one](https://forums.speedlife.net/u/bald1one)\ **Post date:** [March 7, 2008, 1:45pm UTC](https://forums.speedlife.net/t/block-guard/195963/6 "2008-03-07T13:45:44Z")
i heard if you run them for a period of time at higher boost levels they will oval your cylinders…which would make sense because they are just reinforcing the top of the cylinder walls, so with the middle of the wall not being reinforced and with the high cylinder pressures it might bow them out but like i said didnt know anyone who ran them…what kinda boost are you buddies running?? ---
**Author:** ![bald1one](https://avatars.discourse-cdn.com/v4/letter/b/9de053/32.png) [@bald1one](https://forums.speedlife.net/u/bald1one)\ **Post date:** [March 7, 2008, 1:49pm UTC](https://forums.speedlife.net/t/block-guard/195963/7 "2008-03-07T13:49:12Z")
> [@NHL 08 RBK edge code released](https://forums.speedlife.net/t/nhl-08-rbk-edge-code-released/35299/8): > > dont it it, the harmonics will cause it to crack without a doubt. a damper pully will help. But for all of that doe you should just sleeve for 700. 700 include shipping or no? ---
**Author:** ![bald1one](https://avatars.discourse-cdn.com/v4/letter/b/9de053/32.png) [@bald1one](https://forums.speedlife.net/u/bald1one)\ **Post date:** [March 7, 2008, 1:51pm UTC](https://forums.speedlife.net/t/block-guard/195963/8 "2008-03-07T13:51:03Z")
i heard at high boost levels they actually oval your cylinder…which would make sense with the high cylinder pressure and the reinforcement only at the top of the cylinder wall ---
**Author:** ![fmfkid250](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fmfkid250/32/5973_2.png) [@fmfkid250](https://forums.speedlife.net/u/fmfkid250)\ **Post date:** [March 7, 2008, 1:52pm UTC](https://forums.speedlife.net/t/block-guard/195963/9 "2008-03-07T13:52:44Z")
> [@bald1one"](#): > > 700 include shipping or no? no not at all// camp1320 had specials going for a while ---
**Author:** ![bald1one](https://avatars.discourse-cdn.com/v4/letter/b/9de053/32.png) [@bald1one](https://forums.speedlife.net/u/bald1one)\ **Post date:** [March 8, 2008, 8:11am UTC](https://forums.speedlife.net/t/block-guard/195963/10 "2008-03-08T08:11:22Z")
Whats going on with them i tried login on to their web page and its not there anymore… ---
**Author:** ![dyingwish](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dyingwish/32/6041_2.png) [@dyingwish](https://forums.speedlife.net/u/dyingwish)\ **Post date:** [March 9, 2008, 6:52am UTC](https://forums.speedlife.net/t/block-guard/195963/11 "2008-03-09T06:52:35Z")
contact them through honda-tech. ---
**Author:** ![imported\_gearhead](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/imported_gearhead/32/5957_2.png) [@imported\_gearhead](https://forums.speedlife.net/u/imported_gearhead)\ **Post date:** [March 10, 2008, 7:21am UTC](https://forums.speedlife.net/t/block-guard/195963/12 "2008-03-10T07:21:00Z")
I remember putting a block guard in a b16 with a greddy kit. it was a black car, all done up… i thought it was making some big power on big bo0st… it always ran around north hills